Isaac Sherman is a racing driver from United States who competes in GT World Challenge America for CRP Racing. Sherman is a one-time champion (2024), with 13 wins and 19 podiums from 33 starts.[1]
A Racer Rating of 4,176 ranks Sherman 2878th of 40,308 indexed drivers, on an Elo scale where the strongest reach the high 8,000s. It is built from every indexed race in the driver's file.
| 2025-09-07 | Barber Motorsports Park Pro-Am | P3 | +86 |
| 2025-09-06 | Barber Motorsports Park Pro-Am | P6 | −26 |
| 2025-08-17 | Road America Pro-Am | P9 | −147 |
| 2025-08-16 | Road America Pro-Am | P4 | +40 |
| 2025-07-20 | Virginia International Raceway Pro-Am | P5 | +6 |
| Rating won | Race | Series | Finish |
|---|---|---|---|
| +173 | Sonoma Raceway 2024 | GT America | P1 |
| +159 | Sonoma Raceway 2024 | GT America | P1 |
| +159 | Sonoma Raceway 2011 | NASA | P2 |
| +122 | Grand Prix of Long Beach 2024 | GT World Challenge America | P1 |
| +112 | Grand Prix of Long Beach 2024 | GT World Challenge America | P1 |
| Season | Series | Team | Races | Wins | Podiums | DNFs | Poles | Points | Pos | Gain/Loss | Rating |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | ▸GT World Challenge America | CRP Racing | 12 | 0 | 2 | 0 | 0 | 0 | P6 | −288 | 4,176 |
| 2024 | ▸GT America | Rotek Racing | 14 | 11 | 13 | 0 | 0 | 0 | P1 | ↑1,492+670 | 4,465 |
| ▸GT World Challenge America | Rotek Racing | 2 | 2 | 2 | 0 | 0 | 0 | — | ↑867+234 | ||
| ▸GT4 America | Rotek Racing | 2 | 0 | 1 | 0 | 0 | 0 | P17 | +18 | ||
| 2011 | ▸NASA | 143298 | 3 | 0 | 1 | 1 | 0 | 0 | P7 | −167 | 1,183 |
| Rival | Rating | Raced | Ahead | Behind | Record |
|---|---|---|---|---|---|
| 🇺🇸 Gray NewellFIA Bronze | 4,358 | 29 | 20 | 9 | 69% |
| 🇺🇸 Curt SwearinginFIA Bronze | 4,084 | 16 | 12 | 4 | 75% |
| 🇺🇸 Todd ColemanFIA Bronze | 3,625 | 15 | 10 | 5 | 67% |
| 🇺🇸 Nicholas ShannyFIA Bronze | 2,634 | 15 | 14 | 1 | 93% |
| 🇺🇸 Matt BellFIA Silver | 4,244 | 13 | 4 | 9 | 31% |
| 🇬🇧 Philip EllisFIA Gold | 5,241 | 12 | 5 | 7 | 42% |
| 🇺🇸 Robby FoleyFIA Gold | 4,992 | 12 | 3 | 9 | 25% |
| 🇺🇸 Justin RothbergFIA Silver | 4,910 | 12 | 3 | 9 | 25% |
| 🇦🇺 Blake McDonaldFIA Bronze | 4,874 | 12 | 3 | 9 | 25% |
| 🇦🇺 Tom SargentFIA Silver | 4,631 | 12 | 5 | 7 | 42% |
| # | Driver | Series | Rating |
|---|---|---|---|
| 2,868 | 🇳🇱 Sebastiaan Bleekemolen | IMSA Pilot Challenge | 4,179 |
| 2,869 | 🇩🇪 Stefan Aust | Asian Le Mans Series | 4,179 |
| 2,870 | 🇺🇸 Charles Scardina | IMSA WeatherTech | 4,178 |
| 2,871 | 🇫🇷 Romain Carton | GT World Challenge Europe | 4,178 |
| 2,872 | 🇩🇪 Jörg Müller | Nürburgring Langstrecken-Serie | 4,177 |
| 2,873 | 🇺🇸 Larry Pearson | NASCAR Xfinity | 4,177 |
| 2,874 | 🇦🇺 Thomas Maxwell | Formula Renault Eurocup | 4,177 |
| 2,875 | 🇨🇭 Björn Grossmann | Ferrari Challenge | 4,176 |
| 2,876 | 🇺🇸 Haskell Willingham | NASCAR Xfinity | 4,176 |
| 2,877 | 🇯🇵 Hiroshi Hamaguchi | GT World Challenge Europe | 4,176 |
| 2,878 | 🇺🇸 Isaac Sherman | GT World Challenge America | 4,176 |
| 2,879 | 🇩🇪 Peter Zakowski | International Formula 3000 | 4,176 |
| 2,880 | 🇳🇱 Daniel de Jong | 24H Series | 4,175 |
| 2,881 | 🇺🇸 Dick Trickle | NASCAR Xfinity | 4,175 |
| 2,882 | 🇺🇸 Nate Stacy | Lamborghini Super Trofeo NA | 4,175 |
| 2,883 | 🇩🇪 Esteban Muth | GT World Challenge Europe | 4,174 |
| 2,884 | 🇩🇪 Hannes Plesse | Nürburgring 24 Hours | 4,174 |
| 2,885 | 🇺🇸 Joey Kourafas | NASCAR Xfinity | 4,174 |
| 2,886 | 🇩🇪 Robert Renauer | GT World Challenge Europe | 4,174 |
| 2,887 | 🇺🇸 Steve Jarvis | NASCAR Xfinity | 4,174 |
| 2,888 | 🇺🇸 Jack Jeffers | USF Pro 2000 | 4,173 |
Isaac Sherman is a professional racing driver competing in national GT and endurance championships in the United States. He drives GT4 cars for Rotek Racing in GT America, where he has won 11 times in 14 starts during the 2024 season. Sherman is FIA Silver graded, a classification that sits below the full-professional Gold and Platinum grades and typically denotes a driver progressing within sportscar racing.[1]
Sherman won the 2024 GT America championship with Rotek Racing. He has also competed in GT World Challenge America and GT4 America, both multiclass endurance series where he shared cars with co-drivers; across those two series in 2024 and 2025 he has taken three wins and six podiums from 16 starts. His early racing in 2011 saw him compete in NASA's multiclass championships, where he finished seventh in points and recorded one podium finish.[2]
Sherman regularly finishes ahead of professional-level Bronze-graded drivers such as Gray Newell and Curt Swearingin, who have extensive experience across multiple GT series. He has also beaten established professionals including Philip Ellis, the 2024 and 2025 IMSA WeatherTech GTD champion, on five occasions, and Robby Foley, the 2025 GT World Challenge America Pro-Am champion, three times in their shared races in GT World Challenge America.